diff --git a/include/linux/mm.h b/include/linux/mm.h index fd1baead0d8f..146ab0e11726 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -321,6 +321,8 @@ static inline int is_vmalloc_or_module_addr(const void *x) } #endif +extern void kvfree(const void *addr); + static inline void compound_lock(struct page *page) { #ifdef CONFIG_TRANSPARENT_HUGEPAGE diff --git a/mm/util.c b/mm/util.c index ae962b31de88..6d4bc4e253de 100644 --- a/mm/util.c +++ b/mm/util.c @@ -4,6 +4,10 @@ #include #include #include +#include +#include +#include +#include #include #include "internal.h" @@ -341,6 +345,15 @@ int __attribute__((weak)) get_user_pages_fast(unsigned long start, } EXPORT_SYMBOL_GPL(get_user_pages_fast); +void kvfree(const void *addr) +{ + if (is_vmalloc_addr(addr)) + vfree(addr); + else + kfree(addr); +} +EXPORT_SYMBOL(kvfree); + /* Tracepoints definitions. */ EXPORT_TRACEPOINT_SYMBOL(kmalloc); EXPORT_TRACEPOINT_SYMBOL(kmem_cache_alloc); diff --git a/security/apparmor/include/apparmor.h b/security/apparmor/include/apparmor.h index 40aedd9f73ea..4a8cbfeef8b3 100644 --- a/security/apparmor/include/apparmor.h +++ b/security/apparmor/include/apparmor.h @@ -65,7 +65,6 @@ extern int apparmor_initialized __initdata; char *aa_split_fqname(char *args, char **ns_name); void aa_info_message(const char *str); void *kvmalloc(size_t size); -void kvfree(void *buffer); /** diff --git a/security/apparmor/lib.c b/security/apparmor/lib.c index e75829ba0ff9..2b038e9628ac 100644 --- a/security/apparmor/lib.c +++ b/security/apparmor/lib.c @@ -104,34 +104,3 @@ void *kvmalloc(size_t size) return buffer; } -/** - * do_vfree - workqueue routine for freeing vmalloced memory - * @work: data to be freed - * - * The work_struct is overlaid to the data being freed, as at the point - * the work is scheduled the data is no longer valid, be its freeing - * needs to be delayed until safe. - */ -static void do_vfree(struct work_struct *work) -{ - vfree(work); -} - -/** - * kvfree - free an allocation do by kvmalloc - * @buffer: buffer to free (MAYBE_NULL) - * - * Free a buffer allocated by kvmalloc - */ -void kvfree(void *buffer) -{ - if (is_vmalloc_addr(buffer)) { - /* Data is no longer valid so just use the allocated space - * as the work_struct - */ - struct work_struct *work = (struct work_struct *) buffer; - INIT_WORK(work, do_vfree); - schedule_work(work); - } else - kfree(buffer); -}